Sean May

He advises law firms, healthcare providers, health insurers, and government agencies in litigation, merger review, arbitration, and regulatory proceedings.  

Dr. May has extensive experience evaluating hospital mergers, physician practice acquisitions, health insurer transactions, and other healthcare competition matters. His work has addressed market definition, competitive effects, patient-flow and referral analyses, demand estimation, merger simulation, the effects of cross-market or vertical mergers, and the economics of joint ventures. He has worked on behalf of private parties, the US Department of Justice, the Federal Trade Commission, state attorneys general, and the Canadian Competition Bureau. 

Dr. May is also recognized for his work on provider reimbursement and healthcare payment policies. He has served as an expert and consultant in matters involving out-of-network reimbursement, market rates for healthcare services, and health plan benefits. His work spans hospitals and health systems, physician groups, post-acute and ancillary providers, health insurers, and pharmacy benefit managers. Drawing on large healthcare claims, transaction, demographic, and provider databases, he develops and evaluates statistical models relating to reimbursement, consumer demand, damages, and competitive effects. He has testified in federal court and private arbitrations. 

Dr. May has published and presented on horizontal and cross-market healthcare mergers, market definition, merger efficiencies, health insurer competition, and provider reimbursement. He has conducted policy research for the American Hospital Association and America’s Health Insurance Plans and spoken at programs sponsored by the Federal Trade Commission, the American Bar Association, the American Health Law Association, the American Medical Association, and other leading legal and healthcare organizations. He received a PhD in economics from the Massachusetts Institute of Technology and a BS in mathematics from Queen’s University.